Comments |
Any text after a semicolon is not part of the program and is ignored by the simulator. These comments are used for explanations of what the program is doing. Good programmers make extensive use of comments. Good comments should not just repeat the code. Good comments should explain why things are begin done.
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CLO |
The CLO command is unique to this simulator. It closes any window that is not needed while a program is running. This command makes it easier to write nice demonstration programs. It also avoids having to close several windows manually.
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MOV |
The MOV command is short for Move. In this example numbers are being copied into registers where arithmetic can be done. MOV copies data from one location to another. The data in the original location is left intact by the MOV command. Move was shortened to Mov because, in olden times, computer memory was fiendishly expensive. Every command was shortened as much as possible, much like the mobile phone texting language used today.
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ADD | |
